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src/logging/timer.h
// Copyright (c) 2009-2010 Satoshi Nakamoto | // Copyright (c) 2009-2010 Satoshi Nakamoto | ||||
// Copyright (c) 2009-2018 The Bitcoin Core developers | // Copyright (c) 2009-2018 The Bitcoin Core developers | ||||
// Distributed under the MIT software license, see the accompanying | // Distributed under the MIT software license, see the accompanying | ||||
// file COPYING or http://www.opensource.org/licenses/mit-license.php. | // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||||
#ifndef BITCOIN_LOGGING_TIMER_H | #ifndef BITCOIN_LOGGING_TIMER_H | ||||
#define BITCOIN_LOGGING_TIMER_H | #define BITCOIN_LOGGING_TIMER_H | ||||
#include <logging.h> | #include <logging.h> | ||||
#include <util/macros.h> | #include <util/macros.h> | ||||
#include <util/time.h> | #include <util/time.h> | ||||
#include <util/types.h> | |||||
#include <chrono> | #include <chrono> | ||||
#include <string> | #include <string> | ||||
namespace BCLog { | namespace BCLog { | ||||
//! RAII-style object that outputs timing information to logs. | //! RAII-style object that outputs timing information to logs. | ||||
template <typename TimeType> class Timer { | template <typename TimeType> class Timer { | ||||
Show All 21 Lines | public: | ||||
} | } | ||||
std::string LogMsg(const std::string &msg) { | std::string LogMsg(const std::string &msg) { | ||||
const auto end_time = GetTime<std::chrono::microseconds>() - m_start_t; | const auto end_time = GetTime<std::chrono::microseconds>() - m_start_t; | ||||
if (m_start_t.count() <= 0) { | if (m_start_t.count() <= 0) { | ||||
return strprintf("%s: %s", m_prefix, msg); | return strprintf("%s: %s", m_prefix, msg); | ||||
} | } | ||||
std::string units = ""; | if constexpr (std::is_same<TimeType, | ||||
float divisor = 1; | std::chrono::microseconds>::value) { | ||||
return strprintf("%s: %s (%iμs)", m_prefix, msg, end_time.count()); | |||||
if (std::is_same<TimeType, std::chrono::microseconds>::value) { | } else if constexpr (std::is_same<TimeType, | ||||
units = "μs"; | std::chrono::milliseconds>::value) { | ||||
} else if (std::is_same<TimeType, std::chrono::milliseconds>::value) { | return strprintf("%s: %s (%.2fms)", m_prefix, msg, | ||||
units = "ms"; | end_time.count() * 0.001); | ||||
divisor = 1000.; | } else if constexpr (std::is_same<TimeType, | ||||
} else if (std::is_same<TimeType, std::chrono::seconds>::value) { | std::chrono::seconds>::value) { | ||||
units = "s"; | return strprintf("%s: %s (%.2fs)", m_prefix, msg, | ||||
divisor = 1000. * 1000.; | end_time.count() * 0.000001); | ||||
} else { | |||||
static_assert(ALWAYS_FALSE<TimeType>, | |||||
"Error: unexpected time type"); | |||||
} | } | ||||
const float time_ms = end_time.count() / divisor; | |||||
return strprintf("%s: %s (%.2f%s)", m_prefix, msg, time_ms, units); | |||||
} | } | ||||
private: | private: | ||||
std::chrono::microseconds m_start_t{}; | std::chrono::microseconds m_start_t{}; | ||||
//! Log prefix; usually the name of the function this was created in. | //! Log prefix; usually the name of the function this was created in. | ||||
const std::string m_prefix{}; | const std::string m_prefix{}; | ||||
//! A descriptive message of what is being timed. | //! A descriptive message of what is being timed. | ||||
const std::string m_title{}; | const std::string m_title{}; | ||||
//! Forwarded on to LogPrint if specified - has the effect of only | //! Forwarded on to LogPrint if specified - has the effect of only | ||||
//! outputing the timing log when a particular debug= category is specified. | //! outputing the timing log when a particular debug= category is specified. | ||||
const BCLog::LogFlags m_log_category{}; | const BCLog::LogFlags m_log_category{}; | ||||
}; | }; | ||||
} // namespace BCLog | } // namespace BCLog | ||||
#define LOG_TIME_MICROS_WITH_CATEGORY(end_msg, log_category) \ | |||||
BCLog::Timer<std::chrono::microseconds> PASTE2( \ | |||||
logging_timer, __COUNTER__)(__func__, end_msg, log_category) | |||||
#define LOG_TIME_MILLIS_WITH_CATEGORY(end_msg, log_category) \ | #define LOG_TIME_MILLIS_WITH_CATEGORY(end_msg, log_category) \ | ||||
BCLog::Timer<std::chrono::milliseconds> PASTE2( \ | BCLog::Timer<std::chrono::milliseconds> PASTE2( \ | ||||
logging_timer, __COUNTER__)(__func__, end_msg, log_category) | logging_timer, __COUNTER__)(__func__, end_msg, log_category) | ||||
#define LOG_TIME_SECONDS(end_msg) \ | #define LOG_TIME_SECONDS(end_msg) \ | ||||
BCLog::Timer<std::chrono::seconds> PASTE2(logging_timer, \ | BCLog::Timer<std::chrono::seconds> PASTE2(logging_timer, \ | ||||
__COUNTER__)(__func__, end_msg) | __COUNTER__)(__func__, end_msg) | ||||
#endif // BITCOIN_LOGGING_TIMER_H | #endif // BITCOIN_LOGGING_TIMER_H |